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Protective intermediate switch
PD22A
Caution: Important safety precautions!
– Its use under other conditions, e.g. in ambient tem-
peratures above 40°C or in the presence of combusti-
ble gases, solvents, fumes, dust, relative humidity up
to 50% or in wet conditions is to be avoided without
fail.
– If it can be assumed that risk-free use is no longer
possible, stop using the safety plug immediately and
secure it against unintentional use. Risk-free opera-
tion can no longer be assumed if it fails the function
test, exhibits visible damage, or is damaged in transit
or through storage under unfavourable conditions.
– Servicing and repairs may only be carried out by
authorised, qualified persons. Only genuine manu-
facturer's spare parts may be used for replacement
purposes.
Description of function
The protective intermediate switch is a highly sensi-
tive, transferable item of equipment which protects
against hazardous accidents resulting from physical
contact with live leads or parts. If a potential risk aris
es, the adapter responds even at low leakage cur-
rents (minimum 30 mA), interrupting the power supply
within a few milliseconds and assuring safe, swift pro-
tection between the power socket and the connected
appliance.
The protective intermediate switch is intended to
be used as a fixed connecting plug and permanent
attachment for frequently used electrical appliances.
Some models are already cable-connected. Point 1 of
commissioning does not apply in such cases.
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